---
description: Explore Optical Brightener OB-1, a technical guide detailing its unique properties, classifications, and applications. Enhance your understanding with objective, professional insights.
title: Optical Brightener OB-1
image: https://welltchemicals.com/wp-content/uploads/2024/01/10-8.png
---
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# Optical Brightener OB-1
## Get Professional Optical Brightener OB-1 Sourcing Services
Wellt is a trusted sourcing company with years of experience in the industry. Our team of professionals will ensure that you get the highest quality OB-1 at the most competitive prices. We have established relationships with reliable suppliers in China, allowing us to offer you the best sourcing services available. Trust us to handle all the logistics, quality control, and negotiations on your behalf.
[Home](https://welltchemicals.com/) » [Optical Brightener](https://welltchemicals.com/optical-brightener/) » Optical Brightener OB-1
-  ## Introducing Optical Brightener OB-1 from Wellt
Our product brand: Wellnox OB-1
- Wellt’s latest addition – **Optical Brightener OB-1**, a high-quality chemical product.
- Also known as 2,2′-(1,2-ethenediylidi-4,1-phenylene) bis benzoxazole, it offers exceptional whitening properties for various applications.
- It is the top choice in the polymer fiber industry for achieving a brilliant white color with a blue-violet shade.
- The versatile product is suitable for use in PET, PP, ABS, PS, HIPS, PA, PC, EVA, and Rigid PVC.
- Offers excellent heat resistance and low volatility for engineering plastic markets.
- Just 0.01-0.05% of Optical Brightener OB-1 can significantly enhance the visual appeal of products.
- Available in convenient packaging options of 25 kg cartons or drums.
[enquiry now](#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjY5OCIsInRvZ2dsZSI6ZmFsc2V9)
*Optical Brightener OB-1*
*Optical Brightener OB-1 Structure*
-  ## Optical Brightener OB-1 Technical Data
Our product brand: Wellnox OB-1
### CAS NO.: 1533-45-5
CHEMICAL NAME: 2,2′-(1,2-ETHENEDIYLDI-4,1-PHENYLENE)BISBENZOXAZOLE
## Optical Brightener OB-1 Specifications
| Appearance: | Yellowish or greenish powder |
| --- | --- |
| Melting point (℃): | 353-359 |
| Purity (%): | 98 min |
| Applications: | Optical brightener OB-1 can be used in polymer fiber, and it also widely used in plastics, such as PET, PP, ABS, PS, HIPS, PA, PC,EVA, Rigid PVC, etc. Optical brightener OB-1 produces very brilliant white effect with neutral to blue-violet shade. Because of its exceptional whitening properties, excellent resistance to heat and low volatility, it is now widely used in the engineering plastic market. Dosage: 0.01-0.05% |
| PACKAGE: | 25KG carton or drum |
- [](https://welltchemicals.com/wp-content/uploads/2024/01/TDSOB-1.pdf) ## [Optical Brightener OB-1 Technical Data Sheet PDF](https://welltchemicals.com/wp-content/uploads/2024/01/TDSOB-1.pdf)
Click to download accessories for our products
## Optical Brightener OB-1 For Sale
Secure the longevity and brilliance of your products with Optical Brightener OB-1, a top-tier additive available for purchase. Known for its superior brightening properties and wide applications, OB-1 is an investment in quality assurance. Don’t let this chance to improve your business offering pass by.
[Optical Brightener OB-1 for Sale](https://welltchemicals.com/wp-content/uploads/2024/01/1-205.webp) [Optical Brightener OB-1 for Sale](https://welltchemicals.com/wp-content/uploads/2024/01/2-76.webp) [Optical Brightener OB-1 for Sale](https://welltchemicals.com/wp-content/uploads/2024/01/3-61.webp)
## Welcome to Our Optical Brightener OB-1 Factory!
[factory display -1](https://welltchemicals.com/wp-content/uploads/2024/01/2-3.webp) [factory display -2](https://welltchemicals.com/wp-content/uploads/2024/01/2-10.webp) [factory display -3](https://welltchemicals.com/wp-content/uploads/2024/01/3-4.webp) [factory display -4](https://welltchemicals.com/wp-content/uploads/2024/01/4-4.webp) [factory display -5](https://welltchemicals.com/wp-content/uploads/2024/01/5.webp) [factory display -6](https://welltchemicals.com/wp-content/uploads/2024/01/6.webp)
*Why Wellt's Optical Brightener OB-1?*
-  ## Why Wellt's Optical Brightener OB-1?
1. **Superior Performance**: Wellt’s Optical Brightener OB-1 exhibits exceptional brightening properties, maximizing product appeal.
2. **Wide Applications**: With its versatile nature, OB-1 can be employed across various industries, enhancing versatility.
3. **Quality Assurance**: Wellt ensures stringent quality checks for OB-1, guaranteeing consistent performance.
4. **Technical Support**: Wellt provides comprehensive technical guidance, facilitating optimal OB-1 utilization.
[enquiry now](#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjY5OCIsInRvZ2dsZSI6ZmFsc2V9)
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## [The Complete Guide to Optical Brightener OB-1 in 2024](https://welltchemicals.com/blog/the-complete-guide-to-optical-brightener-ob-1-in-2024/)
Welcome to the comprehensive guide to Optical Brightener OB-1 in 2024. This guide aims to provide a thorough understanding of OB-1, exploring its unique properties, classifications, and extensive applications. Drawing on the latest research and industry trends, we'll delve into the technical aspects of OB-1, offering practical tips and recommendations for optimal use. This guide is designed to be a valuable resource for professionals seeking to enhance their knowledge and application of OB-1.
[For more details](https://welltchemicals.com/blog/the-complete-guide-to-optical-brightener-ob-1-in-2024/)
[get support](#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjY5OCIsInRvZ2dsZSI6ZmFsc2V9)
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## Frequently Asked Questions
Want to know more about Optical Brightener OB-1.
### Q: What is Optical Brightener OB-1?
A: Optical Brightener OB-1 or fluorescent brightener OB-1 is a superior quality optical brightener utilized in the whitening of various plastics like polyester, polypropylene, and polyethylene.
### Q: What are the main applications of Optical Brightener OB-1?
A: OB-1 is primarily used in whitening polyester and plastic, including polyester fiber, polypropylene, polyethylene, and rigid PVC. It can also whiten nylon during polymerization.
### Q: What are the critical characteristics of Optical Brightener OB-1?
A: OB-1 is a yellow powder characterized by good light fastness, high-temperature resistance, low volatility, and odorlessness. It emits a vibrant blue fluorescence, making it suitable for diverse applications.
### Q: What are the main benefits of using Optical Brightener OB-1?
A: OB-1 provides excellent dispersibility, compatibility with various polymers, and high fluorescence, contributing to the whitening and brightening of plastics and fibers.
### Q: What are the recommended usage conditions for Optical Brightener OB-1?
A: For optimal whitening effect, OB-1 should be used at the proper concentrations in different polymer matrices like polyester, polypropylene, polyethylene, rigid PVC, and nylon.
### Q: Where is Optical Brightener OB-1 widely supplied from?
A: OB-1 is primarily supplied by trusted manufacturers and suppliers, with significant production hubs in areas like Shandong that specialize in high-quality optical brightening agents.
### Q: How does Optical Brightener OB-1 contribute to the whitening of polyester and plastic?
A: OB-1 enhances the fluorescence and glow of plastics and fibers, resulting in a significant whitening effect, especially in polyester and plastic materials.
### Q: What are the key factors to consider when selecting Optical Brightener OB-1 for specific applications?
A: One should consider factors like compatibility with the polymer matrix, dispersibility, light fastness, temperature resistance, and desired fluorescence level while selecting OB-1.
### Q: Can Optical Brightener OB-1 be used in conjunction with other additives or pigments?
A: Yes, OB-1 can be combined with other additives or pigments to attain specific optical effects and enhance the overall performance of the polymer or plastic product.
### Q: How can I obtain high-quality Optical Brightener OB-1 for my specific requirements?
A: High-quality OB-1 can be procured from reliable suppliers and manufacturers who specialize in optical brightening agents. Contact us for more information on obtaining OB-1 for your specific needs.
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